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A031525 Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 27. 0

%I #12 Jul 06 2024 15:58:12

%S 731,739,743,751,771,779,787,803,811,823,827,839,2920,2944,2976,2984,

%T 3016,3040,3072,3104,3112,3168,3176,3200,3232,3264,3272,3328,3360,

%U 6567,6627,6639,6711,6843,6855,6915,6927,6999,7071,7143,7287,7431,7563,11672

%N Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 27.

%K nonn

%O 1,1

%A _David W. Wilson_

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Last modified August 7 09:20 EDT 2024. Contains 375010 sequences. (Running on oeis4.)